Re: [Python-ideas] Default return values to int and float

Ron Adam wrote:

On Wed, 2011-10-05 at 19:08 +1300, Greg Ewing wrote:

...

Guido van Rossum wrote:

...

I'm out of ideas here. But of all these, str.find is probably still the worst -- I've flagged bugs caused by it too many times to count.

Could a with-statement be used here somehow?

 with finding(x, s) as i:
     ...

Or an iterator.

 for i in finding(x, s):
      ...

How would the case of not found be handled in either of these proposals?

with finding(x, s) as i: ... if not i: # same problem as str.find, unless i is not a simple int

for i in finding(x, s): ... else: # unless for loop has a break, this will happen... # not a problem until you want more than just the first # occurrence of s in x

~Ethan~